CN108688212B - Intelligent low-temperature oil squeezing control method and equipment - Google Patents
Intelligent low-temperature oil squeezing control method and equipment Download PDFInfo
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- CN108688212B CN108688212B CN201810458379.9A CN201810458379A CN108688212B CN 108688212 B CN108688212 B CN 108688212B CN 201810458379 A CN201810458379 A CN 201810458379A CN 108688212 B CN108688212 B CN 108688212B
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- oil press
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- press
- motor
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 244000105624 Arachis hypogaea Species 0.000 claims description 5
- 240000002791 Brassica napus Species 0.000 claims description 5
- 235000011293 Brassica napus Nutrition 0.000 claims description 5
- 235000004426 flaxseed Nutrition 0.000 claims description 5
- 235000020232 peanut Nutrition 0.000 claims description 5
- 240000001548 Camellia japonica Species 0.000 claims description 4
- 235000018597 common camellia Nutrition 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 244000000231 Sesamum indicum Species 0.000 description 1
- 235000003434 Sesamum indicum Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/125—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/26—Programme control arrangements
Abstract
The invention discloses an intelligent low-temperature oil squeezing control method and equipment thereof, wherein the equipment comprises an oil press and a controller, the oil press is connected with an oil press feeding motor, a temperature detection device and a pressure detection device are arranged in an inner cavity of the oil press, and signal output ends of the temperature detection device and the pressure detection device are respectively connected with execution ends of an oil press main motor and the oil press feeding motor through the controller. The controller is used for controlling the rotating speeds of the main motor of the oil press and the feeding motor of the oil press according to the temperature feedback of the temperature detection device and the pressure feedback of the pressure detection device in the oil press, so that the temperature in the oil press is in a set range in the oil press squeezing process, and the control requirement of low-temperature oil squeezing is met. The invention realizes the real-time automatic control of the low-temperature squeezing of the oil without manual direct intervention, thereby ensuring the high oil yield and high quality of the oil in the low-temperature squeezing process.
Description
Technical Field
The invention relates to oil pressing equipment, in particular to an intelligent low-temperature oil pressing control method and equipment thereof.
Background
The existing oil press generally adopts screw press mainly, the main principle is that a screw rod and a press screw are arranged in an inner cavity of the oil press, the screw rod and the press screw are driven by a motor to rotate in a press cage, oil (such as rapeseeds, peanuts, sesame, flaxseeds and the like) is extruded in the space between the press screw and the press cage, so that grease in the oil is pressed out, flows away along an oil outlet of a press strip gap, and the rest cake is sent out of a press chamber along the tail end of the press screw under the drive of the press screw.
In order to better achieve the oil pressing effect and the quality of the oil product, the nutrition quality of the oil product can be greatly improved by using a low-temperature pressing (70 ℃) technology under the premise of ensuring the working efficiency. However, in the existing low-temperature squeezing equipment, when the oil enters the barrel too fast, the temperature of the barrel is increased, the quality of the oil product is affected when the temperature is too high, and when the oil enters the barrel too slow, the oil yield is reduced; the rotating speed of the main motor of the oil press also directly influences the oil pressing effect, the rotating speed is too high, the pressure of the press chamber is increased, the temperature is increased, the rotating speed is too slow, the pressure is reduced, and the oil yield is reduced; when the pressure of the press chamber is too large, the load of the screw rod is too large, the screw rod is more likely to be blocked, a motor driving the screw rod is burnt out, the press chamber is extruded and exploded to deform or break, and the oil press is seriously damaged.
Disclosure of Invention
The invention aims to provide an intelligent low-temperature oil squeezing control method and equipment thereof, which can ensure that a squeezing chamber is always in a low-temperature squeezing state, thereby improving the quality and the oil yield of oil products.
In order to achieve the above purpose, the invention adopts the following technical scheme: an intelligent low-temperature oil squeezing control method comprises the following steps:
1) Setting normal working temperature ranges t 1-t 2 and normal working pressure ranges p 1-p 2 of an inner cavity of the oil press;
2) Detecting the temperature and the pressure of the inner cavity of the oil press;
3) Comparing the temperature T and the pressure P detected in the step 2) with the temperature ranges T1-T2 and the pressure ranges P1-P2 set in the step 1):
when T1 is more than or equal to T2 and P1 is more than or equal to P2, the main motor of the oil press and the feeding motor of the oil press work normally;
when T is more than T2 and P is more than P2, the rotation speed of the main motor of the oil press and the feeding motor of the oil press is reduced, so that the inner cavity of the oil press is restored to the normal working temperature, and the oil outlet quality is ensured;
when T is less than T1 and P is less than P1, the rotating speeds of the main motor of the oil press and the feeding motor of the oil press are increased, so that the inner cavity of the oil press is restored to the normal working temperature, and the oil press efficiency is improved;
when T is more than T2 and P is less than P1, the rotation speeds of a main motor of the oil press and a feeding motor of the oil press are reduced, so that the temperature of the inner cavity of the oil press is reduced to the normal working temperature;
and when T is less than T1 and P is more than P2, reducing the rotation speed of the main motor of the oil press and the feeding motor of the oil press.
Further, in the step 1), the rapeseeds are pressed at a low temperature, the normal working temperature of the inner cavity of the oil press is set to be 60-70 ℃, and the normal working pressure is set to be 2.0-2.4 Mpa.
Further, in the step 1), the peanuts are pressed at a low temperature, the normal working temperature of the inner cavity of the oil press is set to be 60-70 ℃, and the normal working pressure is set to be 2.6-3.0 Mpa.
Further, in the step 1), the camellia seeds are pressed at a low temperature, the normal working temperature of the inner cavity of the oil press is set to be 60-70 ℃, and the normal working pressure is set to be 3.2-3.6 Mpa; the flax seeds are pressed at low temperature, the normal working temperature of the inner cavity of the oil press is set to be 60-70 ℃, and the normal working pressure is set to be 2.4-2.8 Mpa.
Still further, in the step 3):
when T1 is more than or equal to T2 and P is less than P1, the rotation speeds of the main motor of the oil press and the feeding motor of the oil press are increased;
when T1 is more than or equal to T2 and P is more than P2, reducing the rotation speeds of a main motor of the oil press and a feeding motor of the oil press;
when T is less than T1 and P1 is more than or equal to P and less than or equal to P2, the rotating speeds of the main motor of the oil press and the feeding motor of the oil press are increased;
when T is more than T2 and P1 is more than or equal to P is less than or equal to P2, the rotating speeds of the main motor of the oil press and the feeding motor of the oil press are reduced.
The intelligent low-temperature oil squeezing device comprises an oil press and a controller, wherein the oil press is connected with a main motor of the oil press and a feeding motor of the oil press, a temperature detection device and a pressure detection device are arranged in an inner cavity of the oil press, and a signal output end of the temperature detection device and a signal output end of the pressure detection device are respectively connected with the main motor of the oil press and an execution end of the feeding motor of the oil press through the controller.
Further, the controller comprises an MCU and a motor driving unit, the temperature detection device and the signal output end of the pressure detection device are connected with the motor driving unit through the MCU, and the motor driving unit is respectively connected with the main motor of the oil press and the feeding motor of the oil press.
Further, the oil press is a single-screw oil press or a double-screw oil press; the temperature detection device comprises a plurality of four-wire temperature sensors, and the temperature sensors are arranged at the bottom of a press chamber of the oil press; the pressure detection device comprises a plurality of pressure sensors which are arranged at the top of the press chamber of the oil press.
Further, the intelligent control system also comprises a display unit and an alarm device, wherein the display unit and the alarm device are respectively connected with the controller, and the controller is connected with the control panel through the Ethernet.
Furthermore, the controller is also connected with a feeding motor of the oil press and a main motor rotating speed detection device.
Compared with the prior art, the invention has the following advantages:
according to the invention, the temperature and the pressure of the press chamber are detected by the temperature detection device and the pressure detection device and fed back to the controller, and the controller correspondingly controls the feeding motor and the main motor of the oil press according to the temperature and the pressure information detected by the detection device, so that the feeding motor and the main motor keep normal rotation speed or adjust motor drive to adjust rotation speed so as to enable the temperature and the pressure of the press chamber to return to normal ranges, and further the press chamber is always in a cold press state, and the oil yield and the oil quality of the oil press are greatly improved.
Secondly, the invention realizes the real-time automatic control of the low-temperature squeezing of the oil without manual direct intervention, thereby guaranteeing the high oil yield and high quality of the oil in the low-temperature squeezing process.
Thirdly, the invention ensures that the press chamber of the oil press is in a low-temperature pressure-fit state most of the time, the oil is evenly discharged, the screw is blocked stably, the load of the motor of the oil press is small, the problems of locked rotation, machine clamping, press chamber explosion and the like are well avoided, and the damage risk of the machine is effectively reduced.
Fourth, because the different oil types squeeze the characteristic differently, the corresponding driving motor rotational speed is different too, but the invention controls temperature and pressure cooperatively through the main motor of the oil press and the rising and falling of the feeding motor of the oil press, not only squeeze the efficiency high, balance and match are good, and promote the commonality of the apparatus by a wide margin, make whole apparatus structure and control process simple and smooth, the oil has obtained unexpected cold pressing effect.
Drawings
Fig. 1 is a schematic structural view of an intelligent low-temperature oil squeezing device.
Fig. 2 is a block diagram of an intelligent low-temperature oil squeezing device.
Fig. 3 is a control flow chart of the apparatus of fig. 2 (in the figure, the motor means driving the main motor 11 of the press and the feed motor 3 of the press).
Detailed Description
The invention will be described in further detail below with reference to the drawings, for a clearer understanding of the invention, but they are not limiting.
As shown in fig. 1 and fig. 2, the intelligent low-temperature oil squeezing device comprises an oil press 1 and a controller 2, wherein the oil press 1 is provided with an oil press main motor 11, the oil press 1 is connected with a spiral feeding device, the spiral feeding device is provided with an oil press feeding motor 3, a temperature detecting device 4 for detecting the temperature of a squeezing chamber and a pressure detecting device 5 for detecting the pressure of the squeezing chamber are arranged in an inner cavity of the oil press 1, and signal output ends of the temperature detecting device 4 and the pressure detecting device 5 are connected with executing ends of the oil press main motor 11 and the oil press feeding motor 3 respectively through the controller 2.
In the above scheme, the controller 2 comprises an MCU2.1 and a motor driving unit 2.2, wherein the MCU2.1 is respectively connected with the temperature detecting device 4, the pressure detecting device 5, the feeding motor rotation speed detecting device 9 of the oil press and the motor driving unit 2.2, and is used for comparing the highest temperature and the highest pressure detected by the temperature detecting device 4 and the pressure detecting device 5 with the temperature and pressure parameters preset by the MCU2.1, and sending corresponding instructions to the motor driving unit 2.2 to adjust the rotation speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press. The oil press 1 is a single-screw oil press or a double-screw oil press; the temperature detection device 4 comprises a plurality of four-wire temperature sensors which are arranged at the bottom of the press chamber of the oil press 1, wherein when the temperature is measured, the highest value of the plurality of temperature sensors is compared with the set temperature; the pressure detecting means 5 comprises a plurality of pressure sensors arranged at the top of the press chamber of the oil press 1, wherein the highest value of the plurality of pressure sensors is compared with a set pressure when measuring the pressure.
In the above scheme, the display unit 6 and the alarm device 7 are respectively connected with the controller 2, and the controller 2 is connected with the control panel 8 through the ethernet. The alarm device 7 is used for sending an alarm signal after the motor is prevented from being blocked; the display unit 6 adopts a liquid crystal display, and the display unit 6 and the control panel are used for manually inputting control parameter instructions.
As shown in fig. 3, the control process of the intelligent low-temperature oil squeezing device comprises the following steps:
1) Setting normal working temperature ranges t 1-t 2 (t 2 > t 1) and normal working pressure ranges p 1-p 2 (p 2 > p 1) of the inner cavity of the oil press, wherein when oil is rapeseeds, peanuts, camellia seeds and flaxseeds, t1 and t2 are preferably 60-70 ℃, when the oil is rapeseeds, p1 and p2 are preferably 2.0-2.4 Mpa, when the oil is peanuts, p1 and p2 are preferably 2.6-3.0 Mpa, and when the oil is camellia seeds, p1 and p2 are preferably 3.2-3.6 Mpa; when the oil is linseed, the pressure p1 and the pressure p2 are preferably 2.4-2.8 Mpa;
2) Detecting the temperature and the pressure of the inner cavity of the oil press;
3) Comparing the temperature T and the pressure P detected in the step 2) with the temperature ranges T1-T2 and the pressure ranges P1-P2 set in the step 1):
when T1 is less than or equal to T2 and P1 is less than or equal to P2, the main motor 11 of the oil press and the feeding motor 3 of the oil press are driven to work normally, namely: driving the main motor 11 of the oil press and the feeding motor 3 of the oil press to stably operate at the motor rotation speed when reaching the temperature T and the pressure P;
when T is more than T2 and P is more than P2, the MCU2.1 automatically gives an instruction to the motor driving unit 2.2, the rotating speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press are reduced, and the inner cavity of the oil press is restored to the normal working temperature so as to ensure the oil output quality;
when T is smaller than T1 and P is smaller than P1, the MCU2.1 automatically gives an instruction to the motor driving unit 2.2, the rotating speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press are improved, and the inner cavity of the oil press is restored to the normal working temperature, so that the oil press efficiency is improved;
when T is more than T2 and P is less than P1, the MCU2.1 automatically gives a command to the motor driving unit 2.2, the rotating speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press are reduced, and the temperature of the inner cavity of the oil press is reduced to the normal working temperature;
when T is smaller than T1 and P is larger than P2, the MCU2.1 automatically gives a command to the motor driving unit 2.2, and the rotating speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press are reduced;
when T1 is more than or equal to T2 and P is less than P1, the MCU2.1 automatically gives an instruction to the motor driving unit 2.2, and the rotating speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press are improved;
when T1 is more than or equal to T2 and P is more than P2, the MCU2.1 automatically gives an instruction to the motor driving unit 2.2, and the rotating speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press are reduced;
when T is less than T1 and P1 is less than or equal to P and less than or equal to P2, the MCU2.1 automatically gives an instruction to the motor driving unit 2.2, and the rotating speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press are improved;
when T is more than T2 and P1 is more than or equal to P and less than or equal to P2, the MCU2.1 automatically gives an instruction to the motor driving unit 2.2, and the rotating speeds of the main motor 11 of the oil press and the feeding motor 3 of the oil press are reduced.
Claims (8)
1. An intelligent low-temperature oil squeezing control method is characterized in that: the method comprises the following steps:
1) Setting normal working temperature ranges t 1-t 2 and normal working pressure ranges p 1-p 2 of an inner cavity of the oil press;
2) Detecting the temperature and the pressure of the inner cavity of the oil press;
3) Comparing the temperature T and the pressure P detected in the step 2) with the temperature ranges T1-T2 and the pressure ranges P1-P2 set in the step 1):
when T1 is more than or equal to T2 and P1 is more than or equal to P2, the main motor of the oil press and the feeding motor of the oil press work normally;
when T is more than T2 and P is more than P2, the rotation speed of the main motor of the oil press and the feeding motor of the oil press is reduced, so that the inner cavity of the oil press is restored to the normal working temperature, and the oil outlet quality is ensured;
when T is less than T1 and P is less than P1, the rotating speeds of the main motor of the oil press and the feeding motor of the oil press are increased, so that the inner cavity of the oil press is restored to the normal working temperature, and the oil press efficiency is improved;
when T is more than T2 and P is less than P1, the rotation speeds of a main motor of the oil press and a feeding motor of the oil press are reduced, so that the temperature of the inner cavity of the oil press is reduced to the normal working temperature;
when T is less than T1 and P is more than P2, reducing the rotation speeds of a main motor of the oil press and a feeding motor of the oil press;
when T1 is more than or equal to T2 and P is less than P1, the rotation speeds of the main motor of the oil press and the feeding motor of the oil press are increased;
when T1 is more than or equal to T2 and P is more than P2, reducing the rotation speeds of a main motor of the oil press and a feeding motor of the oil press;
when T is less than T1 and P1 is more than or equal to P and less than or equal to P2, the rotating speeds of the main motor of the oil press and the feeding motor of the oil press are increased;
when T is more than T2 and P1 is more than or equal to P and less than or equal to P2, reducing the rotation speeds of a main motor of the oil press and a feeding motor of the oil press;
the intelligent low-temperature oil squeezing control method is completed by adopting intelligent low-temperature oil squeezing equipment, the intelligent low-temperature oil squeezing equipment comprises an oil press (1) and a controller (2), an oil press main motor (11) and an oil press feeding motor (3) are connected to the oil press (1), a temperature detection device (4) and a pressure detection device (5) are arranged in an inner cavity of the oil press (1), and signal output ends of the temperature detection device (4) and the pressure detection device (5) are respectively connected with execution ends of the oil press main motor (11) and the oil press feeding motor (3) through the controller (2).
2. The intelligent low-temperature oil squeezing control method according to claim 1, characterized by comprising the following steps: in the step 1), the rapeseeds are pressed at a low temperature, the normal working temperature of the inner cavity of the oil press is set to be 60-70 ℃, and the normal working pressure is set to be 2.0-2.4 Mpa.
3. The intelligent low-temperature oil squeezing control method according to claim 1, characterized by comprising the following steps: in the step 1), the peanuts are pressed at a low temperature, the normal working temperature of the inner cavity of the oil press is set to be 60-70 ℃, and the normal working pressure is set to be 2.6-3.0 Mpa.
4. The intelligent low-temperature oil squeezing control method according to claim 1, characterized by comprising the following steps: in the step 1), the camellia seeds are pressed at a low temperature, the normal working temperature of the inner cavity of the oil press is set to be 60-70 ℃, and the normal working pressure is set to be 3.2-3.6 Mpa; the flax seeds are pressed at low temperature, the normal working temperature of the inner cavity of the oil press is set to be 60-70 ℃, and the normal working pressure is set to be 2.4-2.8 Mpa.
5. The intelligent low-temperature oil squeezing control method according to claim 1, characterized by comprising the following steps: the controller (2) comprises an MCU (micro control unit) (2.1) and a motor driving unit (2.2), the temperature detection device (4) and the signal output end of the pressure detection device (5) are connected with the motor driving unit (2.2) through the MCU (2.1), and the motor driving unit (2.2) is respectively connected with the main motor (11) of the oil press and the feeding motor (3) of the oil press.
6. The intelligent low-temperature oil squeezing control method according to claim 1 or 5, characterized by comprising the following steps: the oil press (1) is a single-screw oil press or a double-screw oil press; the temperature detection device (4) comprises a plurality of four-wire temperature sensors which are arranged at the bottom of a press chamber of the oil press (1); the pressure detection device (5) comprises a plurality of pressure sensors arranged at the top of the press chamber of the oil press (1).
7. The intelligent low-temperature oil squeezing control method according to claim 1 or 5, characterized by comprising the following steps: the intelligent control system further comprises a display unit (6) and an alarm device (7), wherein the display unit (6) and the alarm device (7) are respectively connected with the controller (2), and the controller (2) is connected with the control panel (8) through the Ethernet.
8. The intelligent low-temperature oil squeezing control method according to claim 1 or 5, characterized by comprising the following steps: the controller (2) is also connected with a feeding motor of the oil press and a main motor rotating speed detection device (9).
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| CN201810458379.9A CN108688212B (en) | 2018-05-14 | 2018-05-14 | Intelligent low-temperature oil squeezing control method and equipment |
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| CN201810458379.9A CN108688212B (en) | 2018-05-14 | 2018-05-14 | Intelligent low-temperature oil squeezing control method and equipment |
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| CN108688212A CN108688212A (en) | 2018-10-23 |
| CN108688212B true CN108688212B (en) | 2023-10-27 |
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| CN110014683A (en) * | 2019-04-18 | 2019-07-16 | 武汉轻工大学 | The TT&C system and method for screw oil expeller squeezing chamber performance |
| CN110561811B (en) * | 2019-09-13 | 2021-05-11 | 宁夏阿萨粮油食品有限公司 | Vegetable oil low-temperature squeezing control method |
| CN110561810B (en) * | 2019-09-13 | 2021-05-11 | 安徽劲龙粮油股份有限公司 | Green and nutrient vegetable oil pressing device and oil pressing process |
| CN111688252A (en) * | 2020-06-24 | 2020-09-22 | 北京逸智联科技有限公司 | Vegetable oil production control system and production control method |
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| CN113650339B (en) * | 2021-08-12 | 2023-08-04 | 丽江永胜边屯食尚养生园有限公司 | Oil pressing device for pressing walnut oil |
| CN114545987B (en) * | 2022-01-31 | 2022-12-13 | 扬州轻舟机械制造有限公司 | Soy sauce squeezer pressure governing system based on food equipment information net |
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| CN108688212A (en) | 2018-10-23 |
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